4results about How to "Avoid floating around" patented technology

This utility model discloses a concrete strength testing device, including a testing platform. Two clamping frames are arranged above the testing platform, and a moving mechanism is provided between the testing platform and the two clamping frames. A fixed cover is fixedly connected to the top of the testing platform, and an electric push rod is fixedly installed on the top of the fixed cover. A lifting platform is fixedly connected to the output end of the electric push rod, and the testing instrument body is fixedly connected to the bottom of the lifting platform. A dust suppression mechanism is provided on the testing platform. The moving mechanism includes a fixed groove on the testing platform and a motor on one side of the top of the testing platform. In this utility model, the moving mechanism can drive the two clamping frames to move stably closer to each other, thereby achieving a stable clamping and fixing of the concrete sample. This ensures the stability of the concrete sample during testing, provides a stable structural positioning, and reduces the likelihood of loosening, thus minimizing the occurrence of accidents.

The application relates to airtight powder container, comprising an outer cover, an inner cover, an inner sieve and a base, the inner sieve is airtightly installed at the opening end of the base and is located between the inner cover and the base, the inner cover and the inner sieve are hinged through a hinge unit, the hinge unit is elastic so that the inner cover can move towards the inner sieve side when being forced, when the outer cover is covered on the base, the outer cover extrudes the inner cover so that the inner cover is tightly combined with the inner sieve. In the application, the inner cover and the inner sieve are hinged with each other, the inner cover and the inner sieve can be tightly combined together under the extrusion force of the outer cover, the airtightness of the inner sieve is guaranteed, and the volatile solvent in the cosmetic material in the base is effectively prevented from being volatilized.

The utility model discloses a cable cleaning device for municipal engineering relates to cable cleaning technical field, including cleaning box, the downside fixed connection of cleaning box has dust collection box, the front and back both sides center position of cleaning box all are fixedly installed with push rod, and the output of push rod penetrates the outside of cleaning box and is fixedly connected with the push board, and the inside of push board is provided with the sliding slot, and the upper and lower sides of push board all are provided with the limiting slot of penetration, and the inside of limiting slot is slidably connected with the sliding rod through the sliding block, and the outside right -hand member of push board is fixedly installed with drive motor, and the output of drive motor penetrates the outside of push board and is fixedly connected with the curved wheel. The utility model discloses a cleaning box, push rod, push board, sliding slot, sliding rod, drive motor, curved wheel, spring and brush can be effectively cleaned to different specifications overhead cable, prevent dust accumulation on the cable surface and form dirt, avoid dirt to cause corrosion or damage to the insulating layer of cable, effectively slow down the aging of line.

This utility model discloses a catalyst collection and conveying device at the bottom of the riser pipe of a catalytic cracking unit, belonging to the field of petrochemical technology. It includes a frame platform with a first riser pipe and a second riser pipe mounted on it. A collection hopper is fixedly connected to the bottom of both the first and second riser pipes. In this utility model, fallen catalyst dust is collected by the collection hoppers at the bottom of the first and second riser pipes. The collected catalyst dust is then driven to the inner cavity of a storage tank via a blower, a first electrically controlled valve, an exhaust pipe, a second electrically controlled valve, an upper guide pipe, and a lower guide pipe. The collection hoppers and closed conveying pipes prevent catalyst powder from floating around due to wind during discharge, effectively controlling dust pollution in the unit area, improving the working environment, and protecting equipment and personnel health.